Can anyone help track down a manufacturer?

Factual Questions
1

Looking to create temp tattoos like the ones Tattly.com makes. I’m having a really hard time tracking down a manufacturer that works with vegetable dyes, though. Any help would be greatly appreciated!

2

Can you not use Henna?

3

Have you considered asking Tattly.com who their supplier is?
Their claim is:

This site lists henna and jagua as plant based inks.